A tire plus-sizing software program for receiving data input and displaying data output for six different screens that can be used to correctly determine and convert tire and wheel information to correctly select proper tires and wheels for plus-sizing personal vehicles. Some embodiments comprise writing video frames to a shared memory buffer that is accessible by one or more applications. The control module receives the first voltage signals and compares the temperatures of corresponding position coordinates to output a position coordinate of the greatest temperature according to the first voltage signals.